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<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.labs.observe.Observer</title>
<script src="../../base.js"></script>
<script>
  goog.require('goog.labs.observe.Notice');
  goog.require('goog.labs.observe.Observer');
  goog.require('goog.testing.jsunit');
  goog.require('goog.testing.recordFunction');
</script>
</head>
<body>
<script>
var TYPE = 'testtype';


function testToObserver() {
  var expectedScope = this;
  var notice = new goog.labs.observe.Notice(null, TYPE);
  var fn = goog.testing.recordFunction(function(n) {
    assertEquals('Function receives wrong notice object.', notice, n);
    assertEquals('Function is executed with wrong scope.', expectedScope, this);
  });
  var observer = goog.labs.observe.Observer.fromFunction(fn);
  observer.notify(notice);
  assertEquals(1, fn.getCallCount());
}


function testToObserverWithScope() {
  var expectedScope = {};
  var notice = new goog.labs.observe.Notice(null, TYPE);
  var fn = goog.testing.recordFunction(function(n) {
    assertEquals('Function receives wrong notice object.', notice, n);
    assertEquals('Function is executed with wrong scope.', expectedScope, this);
  });
  var observer = goog.labs.observe.Observer.fromFunction(fn, expectedScope);
  observer.notify(notice);
  assertEquals(1, fn.getCallCount());
}


function testToObserverEquals() {
  var fn = function() {};
  assertTrue(
      goog.labs.observe.Observer.fromFunction(fn).equals(
          goog.labs.observe.Observer.fromFunction(fn)));

  var scope = {};
  assertTrue(
      goog.labs.observe.Observer.fromFunction(fn, scope).equals(
          goog.labs.observe.Observer.fromFunction(fn, scope)));
}
</script>
</body>
